y^2+16y-63=

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Solution for y^2+16y-63= equation:


Simplifying
y2 + 16y + -63 = 0

Reorder the terms:
-63 + 16y + y2 = 0

Solving
-63 + 16y + y2 = 0

Solving for variable 'y'.

Begin completing the square.

Move the constant term to the right:

Add '63' to each side of the equation.
-63 + 16y + 63 + y2 = 0 + 63

Reorder the terms:
-63 + 63 + 16y + y2 = 0 + 63

Combine like terms: -63 + 63 = 0
0 + 16y + y2 = 0 + 63
16y + y2 = 0 + 63

Combine like terms: 0 + 63 = 63
16y + y2 = 63

The y term is 16y.  Take half its coefficient (8).
Square it (64) and add it to both sides.

Add '64' to each side of the equation.
16y + 64 + y2 = 63 + 64

Reorder the terms:
64 + 16y + y2 = 63 + 64

Combine like terms: 63 + 64 = 127
64 + 16y + y2 = 127

Factor a perfect square on the left side:
(y + 8)(y + 8) = 127

Calculate the square root of the right side: 11.26942767

Break this problem into two subproblems by setting 
(y + 8) equal to 11.26942767 and -11.26942767.

Subproblem 1

y + 8 = 11.26942767 Simplifying y + 8 = 11.26942767 Reorder the terms: 8 + y = 11.26942767 Solving 8 + y = 11.26942767 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + y = 11.26942767 + -8 Combine like terms: 8 + -8 = 0 0 + y = 11.26942767 + -8 y = 11.26942767 + -8 Combine like terms: 11.26942767 + -8 = 3.26942767 y = 3.26942767 Simplifying y = 3.26942767

Subproblem 2

y + 8 = -11.26942767 Simplifying y + 8 = -11.26942767 Reorder the terms: 8 + y = -11.26942767 Solving 8 + y = -11.26942767 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '-8' to each side of the equation. 8 + -8 + y = -11.26942767 + -8 Combine like terms: 8 + -8 = 0 0 + y = -11.26942767 + -8 y = -11.26942767 + -8 Combine like terms: -11.26942767 + -8 = -19.26942767 y = -19.26942767 Simplifying y = -19.26942767

Solution

The solution to the problem is based on the solutions from the subproblems. y = {3.26942767, -19.26942767}

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